Blocking Of Fue Injector - Benelli TNT 25 Maintenance Manual

Blocking of Fue Injector

The accumulation of fuel impurities may cause flow offset and shorten fuel injector life. When the engine is standing,
the heat of engine may produce fuel precipitation through the head of fuel injector, and the precipitation gathered in the
injection hole may cause flow offset.

Blockage may cause many problems, such as small flow, large friction and accumulation of impurities, and
ultimately affect emissions and durability.

Fuel and environmental factors may cause fuel crystallisation or fuel injector corrosion, which may also cause
flow offset.

Poor oxidation stability of fuel may cause precipitation, so please use high-quality gasoline.

Add an appropriate amount of fuel cleaner to avoid precipitation.

If fuel injector is blocked, please clean injector according to the following cleaning method.
Warning:

The injector is internally designed with a filter, but it is
not a serviceable part because it is designed to filter out
only the accumulated impurities between the fuel filter
and the fuel injector in the fuel line, and these
impurities may cause fuel injector bonding, flow offset
and leakage and other faults, so the fuel filter is very
important.

It can be replaced with the fuel injector with the same
part number.
Bad
Atomization of fuel injector
3-35
Good Bad